Bristol manufacturer Ayrtek claim to employ a ‘unique air-cushioning impact system', with the sharper peak of the helmet making it less likely for the ball to get between the grille and lid. But it did when Broad top-edged Aaron.
Now a new British safety standard for helmets will limit the ability of players to adjust their protective grille settings, with a maximum of 55 millimetres recommended.
The one disappointment for England after their second consecutive huge victory is that their support seamers did not fully grab their big chance in the absence of Broad and with Jimmy Anderson suffering from sickness and off the field for 35 minutes of the last session.
Chris Jordan may have ended the Test with two wickets in two balls, and could have had a third had he not overstepped when dismissing Bhuvneshwar Kumar, but he ended up with three wickets in the match while Chris Woakes struck just once, the wicket of Murali Vijay that at least began India's decline.
